{"id":"CVE-2026-116840","aliases":[],"title":"llama.cpp b5854 before b11275 Integer Overflow in gguf_init_from_reader","description":"llama.cpp b5854 before b11275 contains an integer overflow vulnerability in gguf_init_from_reader that bypasses the CVE-2025-53630 size check when padding near-SIZE_MAX tensor sizes. Attackers can supply a crafted GGUF file whose tensor size pads to zero, causing an undersized data blob and out-of-bounds reads by consumers.","severity":"medium","score":6.9,"published":"2026-10-27T00:33:59.834Z","modified":"2026-10-27T14:14:10.931Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/ggml-org/llama.cpp/issues/26978","https://github.com/ggml-org/llama.cpp/pull/26979","https://github.com/ggml-org/llama.cpp/commit/a6ea155d3d38b3f6f43d0c0dc29c2d592413ef44","https://github.com/ggml-org/llama.cpp/blob/v0.5.0/ggml/src/gguf.cpp#L794-L795","https://github.com/ggml-org/llama.cpp/releases/tag/b11275","https://www.vulncheck.com/advisories/llama-cpp-b5854-before-b11275-integer-overflow-in-gguf-init-from-reader"],"sources":[{"name":"CVE","id":"CVE-2026-116840","modified":"2026-10-27T14:14:10.931Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116840"}],"assessments":[{"source":"CNA","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9},{"source":"CNA","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","score":6.1}]}